A ProMED-mail post <https://url.emailprotection.link/?bczGkw5NaxKViInVN3o8WI7SkfPjCplYcnrvkSnR7vDdzBseB4Z4JgOzMtf4NyhKwZ-87t_ekCqY4X1TR9IACFg~~>
ProMED-mail is a program of the International Society for Infectious Diseases <https://url.emailprotection.link/?bJcYJd1UM9bbZyueyHGqCfuWBsCz6JLr6QpMnBNG04Pz2V8akThtcwE1bjLVZbAR2-PZoubzhx-ALOhYt6Kir6w~~>
Date: Tue 15 Dec 2020 18:59 CET
Source: BR24 [in German, trans. & summ. Mod.DHA, edited] <https://url.emailprotection.link/?brTvfnYMxhMbTD1nfAzfKlV1oBpjM8DJ96ClT93GWkgvE7b7Zh8g5I8B0d3wcvJ5PWenNMINaj0s8RSikpWG97fdpqKxLrTydv4dI19sXJlwyV738TL4Y3dKMLpIEYXIshDrphtxKj1_m_wN8Tmk7ZA4QwWY-du24uyGeqY0NAH0~>
Farmers along the Naab River in the upper palatinate region of Bavaria may no longer irrigate their potatoes and tomatoes with river water.
The Naab upwards from where it joins the Danube is contaminated with _Ralstonia solanacearum_, bacteria that cause dangerous slime rots of those crops.
The pathogen spreads quickly and destroys potato and tomato crops. It is, therefore, classified as a quarantine disease by the European Union. Affected farmers will suffer serious yield losses, as well as financial burden due to mandatory fallow periods, as well as the necessity of extensive cleaning of machinery and storage areas.
According to the state agricultural authority Landesamt fuer Landwirtschaft [Federal Office for Agriculture], the origin of the contamination is unknown. The ban on the use of river water is indefinite. It will only be revoked once several consecutive water samples have been found to be free of the bacteria.
--
Communicated by: ProMED-mail <promed@promedmail.org>
[Members of the _Ralstonia solanacearum_ (Rs; previously _Pseudomonas solanacearum_) species complex affect more than 200 plant species, including many important crops. The various races and biovars are active under different climatic conditions and in different hosts. The Rs complex has been included in the A2 quarantine list of the European Plant Protection Organisation (EPPO).
A number of races and biovars cause bacterial wilt (BW; also called southern BW) of tomato and brown rot (also called bacterial wilt, slime rot) of potato, major diseases of these crops. These pathogens can also affect other solanaceous crops. Symptoms on tomato include wilting of leaves, root rot and death of the plant. In potato, yield losses are mostly caused by tuber rotting, before or after harvest.
The bacteria are spread by mechanical means (including insect activities), contaminated equipment, infected plant material, soil and water. They can survive in soil on plant debris or roots of hosts.
Some solanaceous weeds and volunteer crop plants may serve as pathogen reservoirs. Disease management is difficult, relying mostly on exclusion from new areas and use of certified clean planting material.
Some cultural methods (such as crop rotation), control of pathogen reservoirs and phytosanitary measures may be used. Biological control is being investigated. Tomato varieties with some genetic resistance/tolerance exist, but may not be suitable for all regions.
Potato cultivars with levels of genetic resistance are available for certain growing conditions.
Maps
Germany:
<https://url.emailprotection.link/?bF6bKuU0V88BAF2zJabQFi7NS3FQVifytYG-LEQqsDWXTYaDgm0lSc1KeigjlUJSA5iH3WZvG14il49iUavkQvmgoZRdABXatp9XtZMqHykurJZOeBXVCbCUbf6rMyBUf> (with states) and <https://url.emailprotection.link/?b05QFwqPTij9Or0JNntK2Ta028HK0Hy9cXDrxF4Qezb0Blm3fi9FfGInMNDJpM8P7SvzyIZ-TqJmtiPK9_VzSWg~~>
Europe, overview:
<https://url.emailprotection.link/?bJpjrAQvbo_U19gfVXS2T6Yw1Lg-KmMA_jymow4eTwY7KOuAxQMRDRMkRWF25Rso5PcwVwXzDIn74mPoIvKA2o_gv75PyIqNu4qT5jw4ZGRotj3EcIBpibKjkSzKmjzky>
Pictures
Potato brown rot symptoms:
<https://url.emailprotection.link/?b6JnHINxnZRJYbWeupTmYSTr36ulc8Z8UJCMB7kGLjqbtGea2b5Fqmr914kz0yrIXph92TitmuFkvOXpmZSk-cEgZgxCjQYF0ZpQyZe96YJLf9oAOEzAPDZRAQHRjD28B>,
<https://url.emailprotection.link/?bJmGDjQ8xdnuH48swL_A7WE7GeIoOCFiA9FfxnoYnD56X40JqHkTlqrJ_-g-Hwo-ua0JxP7LxeBSJCnb59sXy8FnGyf28gEZAou29TmyhxIGNXOOgF86rKnbODJhhzf25>,
<https://url.emailprotection.link/?bv45pikH_tDAe9FLr7YLRfqpFpCOJd3cSkfHNte6yZ-nHhEXpdXV7UvwtoUjKJlNnTM-FpdqazW5M2NnYxi9itkbCWeOt0AhFTWZpLF-B65hAOaiLQhjxxhPfkid7FdHd>,
and
<https://url.emailprotection.link/?bUluKC9-5kmTHFqn0Abv3HQiSvX2bg10e_HWq5HbSII12krjxwKb4tyEkrnFNQNyE3oDYtGwCX6tnWXY_7VVUduwtMdcl7bWx-vfXSv0T42DEgdNukFghXk4Vmzq5zZvRnFck2mxEGnG_uVjnhsdcXHdrAXndgZudbPzNZsW7yIc~>
Bacterial wilt symptoms on tomato plants:
<https://url.emailprotection.link/?blu2s_Z0TGqOmi4CbnQHGSlNGKBcRkbJmbCSiIMNAvCHcIsg2uxU0skrlCT9kKXmeazVuUJzAQaVw_QjrHXm7hVi2DdIl5Gg2fi9WXx-_PjEP8iuRYhAksVWCKuj_lyKGVST7MFRGRWiL0Cj22zN_CACIu1ZJsQgGEhyiBjgyIfY~>
and
<https://url.emailprotection.link/?bNAMgpgm9md017uRQknG49RThOPg_B5pPnoJM0MSmMU567BwafiHPB3gcd9pNI3cG7dV7oUiVXaAR8Jthe4Ou19JTuYeN86SBz79aVmraQDTAX9DmubEhKuZWj1PUjxZC>
Links
Additional news story (in German):
<https://url.emailprotection.link/?b9LdWerZ9TRw26XKV_zFmln0qBDFRHIHObxMzKXrbLJzoQ1KGIQOMJ8HAu3_NWeJys6PwdUSOphFPJHuSeCBsIKmsvRoi5e9GNzFbgA7D_-c5DbRXGr1NB6Q1GX06X_OKThfGj9_7J8z5zs2i5lueXUcRWzNCABrLWNSF88uLPbs~>
Rs pathogen and disease information:
<https://url.emailprotection.link/?bHLZnBwoj0kpr-xcxtA3yrrNvh9Mn0EBMTM8NuOnKk90b59JB97mkpZDhupH-D8bpo2j5eDPUw1xqeaPt2Ck8EQ~~> (with pictures), <https://url.emailprotection.link/?bv-ZPKLJLLXWz5_TsXYlxsUxFb9PsFiuo3kPmzjGVrdlDvyzWOonLmsrPAtRnJ4JqeKSa_qphDdnRfndMxLudOqdlrDauWUBuIbELmAaIrZO5VumcAxHCF4MCm8-733cP>,
<https://url.emailprotection.link/?b9cnGlAjXacZB5zxFlN71h1wKdfZjGPpPI4YZt6ceaLMnFQCg-vqjTohwThbQGnHoonCppWp0T-_KcQduIDRAVFK3QNG4eORgMloR7j1JxtKRLxsELMv76MixUPXKBIhY>,
<https://url.emailprotection.link/?b7PNtsjlwHGac17Rpy6iXfKdXdGfFDMripEshZsh1rz97wnOmtMDo3why58MDowbmG2oJ92PeVm5jC1uPFRm_cwwVeKJQUNQKF-51Yhf_qDvk2nWfqAaCZ4Jm4QzP2_JM>,
<https://url.emailprotection.link/?bMHTaDOU-ROb5b1pdaSrNMYdZ1mh6ft4wKtyFIGKoknBWWHmafJxYvB-yYRzTaZGBsmiM1EjLRbHJf7DCJNR7Uy963OdbqbU02Lb8ULZIDtCz37TQS2adgEnSuQKAPLZy>,
<https://url.emailprotection.link/?bIzmObjzGfGIuPqLA7tpWd150WgS6VekuZANIKJnUQGR6t7YTocsX8rdM9AhVgmkHe_Brr5Gt34QoLtE3EWXDi77u_4KzEcN_3VOBrCRN6f6-3jMyGlLhgTE-0jl-oRFm> and <https://url.emailprotection.link/?bP90gDx9LGUPPxqB0kWQJyZom0GV0upVfCJudec8RHY5RjFmXmq1dO7AJ-HoVgd0OBiuR6KCWU-flR79wdPm3ERxGxBKyB37ahgzthhmqTc4qIB52SuaMX4eUV1wBXwxV>
Brown rot of potato:
<https://url.emailprotection.link/?b5RHU_s33RTKEmAKmgw-Ig2KLzrWhuyHZ3qk4wa361lm8Iuz6KN4vFA7dYSMmG4u89tsJqdiR3mSXMT2yxr5gIcmxC1nshoW7g35UrA3auZIWCFnfdcEtuFQg1Cw2-pVm>,
<https://url.emailprotection.link/?bIRlm0OAIV8PcAAef4am1fYAseiU1Fj77O52ACNoMvKwhvXAWAjOKX_Jwhse4nPYIUx_rVIVOXvBGCWTvWE62D9DxToTNzjlv_iMrMrVyghRbWN0Cz3kFPjy_Ukq_cio4>,
<https://url.emailprotection.link/?bSiRm4zbneyP6bFVTQQ0T9z9lgn2_K60Vl0m12zI6pk7POyPpaJ6LtILxMKOdNwHqSDhdMCpoZa2vqURgTvz9QSAiI6VyALPLzGURUbvWjq-6EIeemboOXQekr40Ro0Ah> and <https://url.emailprotection.link/?bVx6o3MAkqLfTi0rwE2z7UAESsyg_XeFEwebIrt-Rno_7uQBMTnc6c1m-xZNkwuz5ZxHrCrIKtP7VOuhDRkdHbEXvc96A5lpCk-0rlfQFh_0MOQD9kVCdUKqIhBKeuKgC>
Bacterial wilt of tomato:
<https://url.emailprotection.link/?b2yv4C4qqTA_raugEbNDSlcWwk8u5BPvuK45hKt16sLYY_vtMuEtcaMIceIWn0ZZNhXDaQfKmxVDS2fSHfPCen1oQZiKAFbASOQ2chfGmowWuq5uBrh63-_gb-HwU4nLw> and <https://url.emailprotection.link/?bAt-_M7o6zIl2s-umIQx_ota_NOojYk1ymOvL9qPdrkJ_jJiIxcEVBcWJJ7G0NnNfrskcDZOn2Q-V6oJWEI-378GX_p5O8GEzG_1zgtl2o4sqPx2uYs_gnN5jqlEq3bLw>
Rs races and biovars:
<https://url.emailprotection.link/?bQr4Tbl_NR6NKEjf_onwb8PSId3VxP0nWaqWGKtB8ZPEISbe3izSgcWK3ub455sn_GZzl4HcmJuMX-kONcf9M0GN5YkKME2QHPqVkjWPUY2Yz_uo5nDuB1uWGrgdbGITn6-zXBbHB-HXLFkTI2kPppC_8Rb24dV5_l5q7rf9XdgE~>
(overview) and
<https://url.emailprotection.link/?b7iAOqq71O1xY9detHi7y6BuPWkw4a-O-0H2ZbvHL4Yd9EUrcKVITlbaHSrawK32iJmAhX1polmnsRMOgNJql4Wn2x5W-0hHIlGT13l9CndPNlDuPhPktjhYEEsA7r4-5La49mbY5ifuamO2NbtytCqPh168MmeH8GujZpnAUG0iO-kbpsad1lY5zct-Ovp2-Zac78pEUF56shI_yD6dCoA~~>
(tomato and other Solanaceae)
Description and taxonomy of Rs:
<https://url.emailprotection.link/?bFur9vq19T3EtsbY1kIotfyU7nWDE-smMYKNvTeh5JaQhdUTOgDFVlK4McDMKAPgS7u_YNHXMiYC2GyYZSKkdiA~~>
EPPO A2 quarantine list:
<https://url.emailprotection.link/?bHpQ2IkoKuSgzueGpzt0tw4cPMEd6c19MqZhJg6tuCq19Zbsefpn-FCkrDFO-rS15jC91EGcg49o8DQtThvlC1O9ZidSav1Of26NoH4R0zUWqttjR3-eOIzmOBWaQYmqH>
- Mod.DHA]
[See Also:
Brown rot, potato - Uganda: survey
https://url.emailprotection.link/?bhhgi89Q-CxuY8lLAFHcazetSd9ahKpNFIYHQJsByMwmUTJfVPTezDPxyu7AIg2krpCepP8D1LDKsHiDLHMYv8S5Egr_FOpPxIS2GAmJxHVbwZniSYcvcCeK22FBXXxuw
Bacterial wilt, tomato - Ghana: (UE)
https://url.emailprotection.link/?bpPFuZ0nOHutylZ38EfvpZYbmb7N2Z2IZixrWqbRllfECQqdrnIaUZ6YXY9UWZ6cS4qyreyNarfPXPStoUpOOQOHJc8g_DNiJpDTGf9veweTcusm_IOntb2PfHPSLJW6f
2019
----
Potato diseases - Russia: survey
https://url.emailprotection.link/?b-4HhquIRI6TZizVs1KVh8rGmHKgnPwSovvIoyqZPJCLhU_-Ro6Z1fC0lEB7SKHCy9OX0cecLQGTJsVXtTZBs0QeZVmb4_e3Y_-sski7599ZAkg3e1xvuwt__Gbew5_dq
2018
----
Wart & brown rot, potato - Georgia, Russia: interceptions https://url.emailprotection.link/?buXAEsBBTYbAdMctDVzSlb9GJd-G7pG0DpTQi-f3Ys_vUYM_rCY2MKxi_IAgQE4FeTaxhBQWGJrnKTCSkA4EywF6nSJ2beSsPWwmhlcBDP9IVaZJUreUhsASDU0QxvLAM
2017
----
Brown rot, potato - Switzerland: alert
https://url.emailprotection.link/?bpfjXSTOg8brPI6vXHwzmIwj4XKqkE24zSHVl3GSFRv0U_g3VcwWrkF6FsqButyrvyrIJvdUKOQco2Yo53Sgd1G3whJq_H2YOzOpsLLtIctBEKRN5OmIrvyl13gm70_xi
Brown rot, potato - Poland
https://url.emailprotection.link/?binSDIh4oNj5Z5XxuMzIisxiMAkIkaTSGQbQgCEyobRhgNRIk4uAohuogkLdP7lODkJTFHWIKvd8UQEsDftxtTsFwKBr9b0WInsIcdd_8CUxYr-vi8SVG_VfufLBv2ZXj
Brown rot, potato - Chile: (AR,LR)
https://url.emailprotection.link/?buw_tvOJ1QdlOhS1eSqdGoCZIenywliH4aZMtrLGY04ukFAd3eO1rgwtCcRDeSLgcERMy8NX1Oi_7f8vGr_IPp_b2y0DRRNCSrLo0GTyej_7GicicMfJGRFbsk8BwKMyO
2015
----
Bacterial diseases, potato - Europe: 1st reports
https://url.emailprotection.link/?bWfhPOuWGUWVmgjfoAPXG8wDo-VNawEKhFo1_q3NgG1zt9ykUfMWDwaottZW0cqoS8TqTLSn_UuWlvUWNHr4Jpcyd3G2yPh_p7Gd5ZqGx6qSvAb9GQJw5Am5KQqfVUTq6
2014
----
Brown rot, potato - Russia: (PR) interceptions https://url.emailprotection.link/?bTs1wRzLZrSsy9ZR52-Xq4QDVyCXvWdoOtUrKlgXdYWYLaTzSUUA0_wey2KvwdF4-5dXdHvLpzVa_pSLGt7dMSacd9lA_up0L9_RGiCXM1OzeW4QOVIkze7YOLuHRhopS
2011
----
Brown rot, potato - Russia: (KL) ex Egypt https://url.emailprotection.link/?bQsN3d-9HwDn7Q3roKnz8soUlJzDrmD72BpqugQpP04rTTsotwmTYjEHRhhgXte_fapU-bf8IHFg-4bmXF-IvpOM6wKR0VPZ5G_9p3QhTWqqnwjxg4Ee9M40_k7EUWVki
2010
----
Bacterial wilt, eggplant - India: (KA) control https://url.emailprotection.link/?bgls2lG8Pmqqj2wzYboGFSajE6rYjD-c0B3tFRtZfPTBC_qvGvDhrss9sqxq1qmfGDYjgj5MH59Q0x-R8Rh_ZSeE7v_pkg5SA8QYCcNIf4rd1rpAG3DElglJIkc0na5Wj
and additional items on ralstonia diseases in the archives]
Topics
Species
